Core · Module 7 · Lesson 3 of 11
Sequence Containers and Adaptors: Choosing the Right Shape
Select array, deque, list, forward_list, stack, queue or priority_queue from their access, ownership and complexity guarantees.
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By the end you can
- Choose a sequence container from access pattern, stability and allocation requirements
- Explain the complexity and invalidation rules of deque, list and forward_list
- Use stack, queue and priority_queue adaptors when only restricted operations are valid
01 · A question first
A queue of jobs needs fast arrival and removal at both ends, while a scheduler needs only its most urgent job. Should both use vector? Container choice is an algorithmic decision: the shape of the operations determines the cost and the bugs you can prevent.
Make a guess before you read on.
02 · The idea
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What's inside
- Start with the operation table
- Adaptors enforce useful interfaces
- Invalidation and selection
- A production queue
- Where it is used
- A practical selection checklist
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